Science and technology №3 (1969)

1. Views of oil refining plants.

Views of various sewage treatment plants.

Ponds are water settling ponds.

Experiments on three-phase water purification using cascade-adhesive separation.

2. Experiments on the production of foil wrappers at a chocolate factory.

Alenka chocolate bars in a foil wrapper.

3. Various medical devices for analyzing the work of the stomach.

Studies of M.A.Sobakin's laboratory of stomach biotopes.

A prototype of a multi-channel diagnostic device for stomach biotopes, created by L.G.Krasilnikov.

4. Views of deforestation in winter with an electric saw.

Felling and loading of logging with the help of a felling and skidding machine manufactured at the Altai Tractor Plant.